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CVE-2026-16221 fast-uri vulnerable to host confusion via literal backslash authority delimiter

🗓️ 19 Jul 2026 14:08:32Reported by openjsType 
cvelist
 cvelist
🔗 www.cve.org👁 50 Views

CVE-2026-16221: fast-uri permits host confusion from a literal backslash; affects 2.3.1 to 4.1.0.

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Refs
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19 Jul 202614:22
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19 Jul 202614:08
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19 Jul 202614:08
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EUVD-2026-45551
21 Jul 202622:08
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github
Github Security Blog
fast-uri vulnerable to host confusion via literal backslash authority delimiter
21 Jul 202622:08
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nvd
NVD
CVE-2026-16221
19 Jul 202615:16
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23 Jul 202600:25
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Rows per page
[
  {
    "vendor": "fast-uri",
    "product": "fast-uri",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "versionType": "semver",
        "status": "affected",
        "version": "2.3.1",
        "lessThan": "2.4.3"
      },
      {
        "versionType": "semver",
        "status": "unaffected",
        "version": "2.4.3"
      },
      {
        "versionType": "semver",
        "status": "affected",
        "version": "3.0.0",
        "lessThan": "3.1.4"
      },
      {
        "versionType": "semver",
        "status": "unaffected",
        "version": "3.1.4"
      },
      {
        "versionType": "semver",
        "status": "affected",
        "version": "4.0.0",
        "lessThan": "4.1.1"
      },
      {
        "versionType": "semver",
        "status": "unaffected",
        "version": "4.1.1"
      }
    ],
    "packageURL": "pkg:npm/fast-uri"
  }
]

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